A5045974982- Mechanical Behavior of Composites
- Structural Response to Dynamic Loads
- High-Velocity Impact and Material Behavior
- Cellular and Composite Structures
- Fiber-reinforced polymer composites
- Photorefractive and Nonlinear Optics
- Composite Structure Analysis and Optimization
- Textile materials and evaluations
- Tribology and Wear Analysis
- Solid State Laser Technologies
- Structural Behavior of Reinforced Concrete
- Material Properties and Applications
- Mechanical stress and fatigue analysis
- Polymer crystallization and properties
- Natural Fiber Reinforced Composites
- Structural Analysis of Composite Materials
- Ferroelectric and Piezoelectric Materials
- Mechanical Engineering and Vibrations Research
- Optical measurement and interference techniques
- Metal Forming Simulation Techniques
- Advanced machining processes and optimization
- Innovations in Concrete and Construction Materials
- Fatigue and fracture mechanics
- Structural Load-Bearing Analysis
- Composite Material Mechanics
Imperial College London
2018-2024
Queen Mary University of London
2023-2024
Dyson (United Kingdom)
2024
Xuzhou Medical College
2024
Cranfield University
2022-2023
Shandong University
2002-2023
Queen's University Belfast
2016-2018
Virginia Commonwealth University
2010
State Key Laboratory of Crystal Materials
2002-2009
Chinese Academy of Medical Sciences & Peking Union Medical College
2005
Auxetic cellular structures have the potential to revolutionise sandwich panel cores due their superior energy absorption capability. Because of negative Poisson's ratio, auxetics behave counterintuitively and contract orthogonally under an applied compressive force, resulting in a densification material vicinity load. This study investigates three compares absorbing characteristics in-plane axial loading conditions. Three unit cell topologies are considered; conventional hexagonal,...
Abstract The present paper describes the results from experimental and theoretical modelling studies on behaviour of continuous carbon fibre/polymer matrix composites subjected to a relatively low-velocity or high-velocity impact, using rigid, metallic impactor. Drop-weight gas-gun tests are employed conduct impact experiments, respectively. fibre based upon thermoplastic poly(ether–ether ketone) (termed CF/PEEK) thermoset toughened epoxy CF/Epoxy), which has same architecture cross-ply [0 3...
The present paper studies the low-velocity impact testing of carbon-fibre reinforced-plastic (CFRP) pristine and patch-repair CFRP panels. Firstly, effect repeated impacts on damage growth is considered at energies 7.5, 10.5 30 J. Secondly, such tests lead to a single-sided, panel being manufactured by removing 40 mm diameter central hole, act as 'damaged area', from parent then adhesively-bonding circular over hole so generated. Various diameters thicknesses for are employed and, in some...
The patch-plug configuration has been widely used to repair composite structures and restore the structural integrity of damaged composites. In present research, single-sided CFRP patch-repaired panels, with different configurations, are prepared. This is where a circular-shaped area removed patch adhesively-bonded onto panel. some cases, plug inserted into hole, caused by removal area, before applied. Such pristine panel, subjected low-velocity impact at an energy 7.5 J. These impacted...
The present paper compares the damage and energy absorption behaviour of composites subjected to low-velocity impact using different frontal geometries for impactor, with possessing a layup [02/902]2s. In this study, rigid impactors either round-nosed or flat-ended geometry are employed perform drop-weight tests at various energies ranging from 10 30 J. measured loading response analysed compared. Additionally, types extent impact-induced in composite specimens assessed via ultrasonic...
Despite recent advancements in using machine learning (ML) techniques to establish the microstructure-property linkage for composites' representative volume elements (RVEs), challenges persist effectively characterising effect of microstructural randomness on material properties. This complexity arises from difficulty expressing as definitive variables and its intertwined relations with other factors, such constituents. Such complexities result limitations generalising ML models across...
The focus of this study is on the nonlinear mechanical properties epoxy and epoxy-based nanocomposites, exploring frequency strain amplitude dependency. Nanocomposite samples are reinforced with fumed silica (FS), halloysite nanotubes (HNT) Albipox 1000 rubber (Evonik) nanoparticles. Considering these particles have different geometries stiffnesses, they expected to significantly influences mechanics resulting composite. To enhance reliability results reveal impact nanofillers material more...
Abstract Carbon-fibre/epoxy-matrix composites used in aerospace and vehicle applications are often susceptible to critical loading conditions one example is impact loading. The present paper describes a detailed experimental numerical investigation on the relatively low-velocity (i.e. <10 m/s) behaviour of such composite laminates. In particular, effects geometry impactor have been studied two types were investigated: (a) steel with hemispherical head (b) flat-ended impactor. They...
Abstract The present paper investigates the impact performance of woven-fabric carbon-fibre composites based upon both thermoplastic- and thermoset-matrix polymers under high-velocity loading by conducting gas-gun experiments at velocities up to 100 m.s −1 . reinforced-polymers (CFRPs) are impacted using soft- (i.e. gelatine) hard- aluminium-alloy) projectiles simulate either a soft bird-strike or hard foreign-body (e.g. runway debris), respectively, on typical employed in civil aircraft....
The aim of the present paper is to reveal influence different fiber orientations on tool wear evolution and mechanism. Side-milling experiments with large-diameter milling tools are conducted. A finite element (FE) cutting model carbon reinforced plastics (CFRP) established get insight into stress status at stages. results show that bring about distinct differences in extent, profile mechanism wear. Severer occurs when 45° 90° plies, followed by 0°, correspondingly, least obtained θ = 135°...